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Actinomycetes & Non Sporing Anaero.
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Growth and Nutrition of Bacteria
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Hepatitis Viruses
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Industrially Useful Microbial Processes
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Home⇒ Medical Science⇒ Microbiology⇒ Identification of bacteria
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ At what concentration of sulphuric acid, Nocardia resists decolourization? 0.5% sulphuric acid [other wrong options] [Discuss in forum] 5% sulphuric acid 10% sulphuric acid 8% sulphuric acid |
Q2 ⇒ Which of the following(s) is/ are oxidase-positive bacteria? All of these [other wrong options] [Discuss in forum] Vibrio Neisseria Pseudomonas |
Q3 ⇒ Catalase production is negative in which of the following? Streptococcus [other wrong options] [Discuss in forum] Salmonella Proteus Staphylococcus |
Q4 ⇒ What is the colour of gram -postive bacteria on a gram staining? Purple [other wrong options] [Discuss in forum] Pink Colourless Green |
Q5 ⇒ Which of the following(s) show(s) positive results for phenylalanine deaminase test? All of these [other wrong options] [Discuss in forum] Providencia Proteus Morganella |
Q6 ⇒ Production of acetoin can be detected by which of the following tests? Voges-Proskauer test [other wrong options] [Discuss in forum] Citrate test Methyl red test Indole test |
Q7 ⇒ Gram staining was developed accidentally in 1884 by Hans Christian Gram [other wrong options] [Discuss in forum] Alexander Fleming Joseph Christian Gram Robert Gram |
Q8 ⇒ The primary stain of Gram's method is crystal violet [other wrong options] [Discuss in forum] safranin phenolpthalene methyl red |
Q9 ⇒ Which of the following shows a positive urease test? Both (a) and (b) [other wrong options] [Discuss in forum] Proteus Klebsiella None of these |
Q10 ⇒ Which of the following inference(s) indicate(s) the ability of an organism to utilize citrate as a sole source of carbon in Simmon's citrate medium? Both (a) and (b) [other wrong options] [Discuss in forum] Blue colour Appearance of growth None of these |
Q11 ⇒ Which of the following is a primary stain for acid fast staining of mycobacteria? Carbol fuchsin [other wrong options] [Discuss in forum] Crystal violet Geimsa Methylene blue |
Q12 ⇒ The organisms that can be acid-fast stained is all of these [other wrong options] [Discuss in forum] Nocardia Tubercle bacilli Lepra bacilli |
Q13 ⇒ The deinococci are gram-positive cocci and rods that are distinctive in their unusually great resistance to both (a) and (b) [other wrong options] [Discuss in forum] radiation desiccation extreme temperatures |
Q14 ⇒ The gram-negative organisms is None of these [other wrong options] [Discuss in forum] Actinomyces Bacillus Clostridium |
Q15 ⇒ The production of sufficient acid by fermentation of glucose leads to decrease in pH such that pH of the medium falls below 4.5. Which of the following test can detect it? Methyl red test [other wrong options] [Discuss in forum] Indole test Citrate utilization test Voges-Proskauer test |
Q16 ⇒ Which of the following organisms can be demonstrated with silver impregnation method? Spirochaetes [other wrong options] [Discuss in forum] Vibrios Salmonella Shigella |
Q17 ⇒ Which of the following is commonly used as Gram's decolouriser? A mixture of ethyl alcohol and acetone [other wrong options] [Discuss in forum] Ethyl alcohol Methyl alcohol Acetone |
Q18 ⇒ Which of the following is a substitute for crystal violet used in gram-staining procedure? Methylene blue [other wrong options] [Discuss in forum] Bromocresol green Safranin Phenolpthalene |
Q19 ⇒ What is the order of reagents used in the Gram stain? Crystal violet, iodine, decolorizer, safranin [other wrong options] [Discuss in forum] Crystal violet, iodine, safranin, decolorizer Safranin, crystal violet, decolorizer, iodine Crystal violet, safranin, iodine, decolorizer |
Q20 ⇒ What is the colour of gram-negative bacteria on a gram staining? Pink [other wrong options] [Discuss in forum] Purple Green Colourless |
Or |